emmetropia

[ em-i-troh-pee-uh ]

/ ˌɛm ɪˈtroʊ pi ə /

noun Ophthalmology.

the normal refractive condition of the eye, in which the rays of light are accurately focused on the retina.

Nearby words

emmenthal, emmenthaler, emmer, emmet, emmet, robert, emmetropia, emmett, emmy, emmylou, emo, emocore

Origin of emmetropia

1860–65; < New Latin, equivalent to emmetr- (stem of Greek émmetros in measure, equivalent to em- em-² + métr(on) measure + -os adj. suffix) + -opia -opia

Related formsem·me·trope, nounem·me·trop·ic

[em-i-trop-ik, -troh-pik] /ˌɛm ɪˈtrɒp ɪk, -ˈtroʊ pɪk/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for emmetropia

(a) In myopia, emmetropia, and doubtful hypermetropia, with convergent and divergent squint together 329 cases.
Schweigger on Squint|C. Schweigger
Therefore we see the same form of squint arise less often in emmetropia (see Case 45) when childhood is past, than in myopia.
Schweigger on Squint|C. Schweigger
Those cases deserve special consideration in which emmetropia is present in one eye, in the other myopia.
Schweigger on Squint|C. Schweigger
It may, therefore, be useful for our purpose to cite a few cases of periodic convergent strabismus with emmetropia.
Schweigger on Squint|C. Schweigger

Emmetropia on both sides, visual acuteness nearly perfect on the right, on the left 2/3 of the normal.
Schweigger on Squint|C. Schweigger

British Dictionary definitions for emmetropia

emmetropia

/ (ˌɛmɪˈtrəʊpɪə) /

noun

the normal condition of perfect vision, in which parallel light rays are focused on the retina without the need for accommodation

Derived Formsemmetropic (ˌɛmɪˈtrɒpɪk), adjective

Word Origin for emmetropia

C19: from New Latin, from Greek emmetros in due measure + -opia

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for emmetropia

emmetropia

[ ĕm′ĭ-trō′pē-ə ]

n.

The condition of the normal eye when parallel rays are focused exactly on the retina and vision is perfect.

Related formsem′me•trop′ic (-trŏp′ĭk, -trō′pĭk) adj.